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      DOUBLE PRECISION FUNCTION slEQEX (DATE)

     - - - - - -
      E Q E X
     - - - - - -

  Equation of the equinoxes  (IAU 1994, double precision)

  Given:
     DATE    dp      TDB (loosely ET) as Modified Julian Date
                                          (JD-2400000.5)

  The result is the equation of the equinoxes (double precision)
  in radians:

     Greenwich apparent ST = GMST + slEQEX

  References:  IAU Resolution C7, Recommendation 3 (1994)
               Capitaine, N. & Gontier, A.-M., Astron. Astrophys.,
               275, 645-650 (1993)
               
  Called:  slNUTC

  Patrick Wallace   Starlink   23 August 1996

  Copyright (C) 1996 Rutherford Appleton Laboratory
  Copyright (C) 1995 Association of Universities for Research in Astronomy Inc.

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